Settings > Payment GatewaysYou can use this area to activate or deactivate various payment gateways that are built into the store. To activate a gateway use the drop down box to the top left to select a gateway and then click on the activate button. When you do that you will then see the gateway configuration settings show up below in the list. Use the configuration to enter in your gateway information. Once you have entered in the information for that gateway you can click on the save button under that gateway listing to save the changes. You can also click on deactivate to remove it from the list of available gateways on your store front.